Specifications
B-456
Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
OL-21227-02
Appendix B Cisco MWR 2941 Router Command Reference
show ethernet cfm errors
Command History
Usage Guidelines Errors that are logged and that the show ethernet cfm errors command displays depend on the version
of CFM that is running. Errors include the following:
• MEP-Down—Maintenance End Point (MEP) timed out or is advertising a 0 lifetime.
• Configuration Error—A continuity check message (CCM) is received that has an maintenance point
ID (MPID) matching the local device, but the source MAC address is different.
• Forwarding Loop—A CCM is received, that has the same MPID and same MAC address as the local
device.
• Cross-connected—A CCM is received and the service ID does not match the service ID configured
on the device for that VLAN.
• Cross-check Missing MEP—The cross-checking delay timer has expired, and the configured remote
MEP did not come up.
• Cross-check Unknown MEP—An unexpected remote MEP came up.
• Receive AIS—A MEP detects a mismerge, which is an unexpected MEP condition, or a signal fail
condition resulting in peer MEPs receiving an alarm indication signal (AIS) frame.
Error conditions are kept in a log for the duration of the archive hold time configured on the maintenance
domain or until the error condition is cleared, whichever occurs first.
Examples The following example shows CFM IEEE sample output from a show ethernet cfm errors command
using none of the optional keywords or arguments:
Router# show ethernet cfm errors
--------------------------------------------------------------------------------
MPID Domain Id Mac Address Type Id Lvl
MAName Reason Age
--------------------------------------------------------------------------------
37 Domain_port aabb.cc03.ba00 Port none 0
portmep Lifetime Timer Expired 89s
401 Domain_L5 aabb.cc03.bb99 Vlan 9 5
cust_500_l5 Lifetime Timer Expired 88s
301 Domain_L7 aabb.cc03.bb99 Vlan 11 7
cust_700_l7 Lifetime Timer Expired 86s
Release Modification
12.2(33)SRA This command was introduced.
12.4(11)T This command was integrated into Cisco IOS Release 12.4(11)T.
12.2(33)SXH This command was integrated into Cisco IOS Release 12.2(33)SXH.
12.2(33)SXI2 This command was integrated into Cisco IOS Release 12.2(33)SXI2.
12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.